APA (7th ed.) Citation

Ahmadjian, V., & Hale, M. E. (1973). The lichens. Academic Press.

Chicago Style (17th ed.) Citation

Ahmadjian, Vernon, and Mason E. Hale. The Lichens. New York: Academic Press, 1973.

MLA (9th ed.) Citation

Ahmadjian, Vernon, and Mason E. Hale. The Lichens. Academic Press, 1973.